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Low numbered Pitney Bowes Eagle with AMPS slug (click for detail view)	Early AMPS Cover December 16, 1940 The advertising slug on this early AMPS cover shows September 15, 1935, likely the birth date for AMPS.   David Crotty
Modified Town Mark (click for detail view)	First Convention November 25, 1952     David Crotty
Roman Numeral for Date (click for detail view)	Roman Numeral in Date, May 5, 1953 The US never authorized the use of Roman numerals for dates.   David Crotty
Unusual Placement of Permit (click for detail view)	International Postal Supply Meter December  11, 1954 Meisel's permit number was often used in creative ways.     David Crotty
IPS Philatelic Modification (click for detail view)	International Postal Supply Meter July 3, 1954 The I.P.S notation with the meter number was never used officially.   David Crotty
Town Mark Inverted (click for detail view)	IPS Meter with inverted town mark, December 20, 1955 The "Last Day Cover" may have refered to the Clintonville Centenial as postmarked on the reverse of this cover. The postal code slug probably did not apply.   David Crotty
Date Bloted Out (click for detail view)	Modified Town Mark The date is blotted out in this example, and unneeded permit number is included with the town name and a postal code section slug that probably did not apply are evident in this cover.   David Crotty
NCR Meter with AMPS Slug (click for detail view)	NCR Meter with AMPS Slug, May 25, 1958 NCR meters often contained a slug identifying the sending company but few were this verbose.   David Crotty
An Unmodified UK Meter (click for detail view)	An Unmodified UK Meter, May 15, 1961 AMPS sometimes had conventions in Canada but this one was in the UK.   David Crotty
An Unmodified Canadian Meter (click for detail view)	An Unmodified Canadian Meter, March 31, 1964 The second AMPS convention in Canada..   David Crotty
An Unmodified Japanese Meter (click for detail view)	An Unmodified Japanese Meter, July 18, 1953   It is not clear how Mr. Meisel moved from President (often General Manager) to Secretary Treasurer in this case.   David Crotty
Meisel Local Post Cover 1965	Meisel Local Post Cover 1965 Meisel produced many meter covers but also produced a number of permit covers and in addition the odd Local Post Cover.